发明名称 |
EFFICIENT MULTIPATH CENTROID TRACKING CIRCUIT FOR A CODE DIVISION MULTIPLE ACCESS (CDMA) SYSTEM |
摘要 |
A method implemented in a communication device for tracking a spread spectrum signal having an associated code at a receiver is claimed. Components of the spread spectrum signal are despread using locally generated versions of the associated code, each component having a different code phase. A tracking error is determined based on a quadratic function of the components and a weighting factor relating the signal to the tracking error. The weighting factor is a function of a time shift. A minimum in the tracking error is determined by adjusting the time shift. |
申请公布号 |
US2010002752(A1) |
申请公布日期 |
2010.01.07 |
申请号 |
US20090557787 |
申请日期 |
2009.09.11 |
申请人 |
INTERDIGITAL TECHNOLOGY CORPORATION |
发明人 |
LOMP GARY;OZLUTURK FATIH |
分类号 |
H03K3/84;H04B17/00;H04B1/707;H04B7/005;H04B7/216;H04B7/26;H04J11/00;H04J13/00;H04J13/04;H04J13/10;H04L1/00;H04L7/00;H04L7/033;H04L25/02;H04L27/00;H04L27/20;H04L27/233;H04W52/04;H04W52/14;H04W52/24 |
主分类号 |
H03K3/84 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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